Jean Delvare wrote:
!!(value & (1 << offset))
is more efficiently written
(value >> offset) & 1

... but not more efficiently implemented.

Your version requires code to do the shift on live data at runtime. David's version lets the compiler create the mask once, at compile-time.



b.g.

--
Bill Gatliff
[EMAIL PROTECTED]

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Reply via email to